[pinchartl-media:drm/du/next 14/17] drivers/gpu/drm/bridge/lvds-codec.c:70:31: warning: cast from pointer to integer of different size

[kbuild test robot <lkp@intel.com>]

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tree:   git://linuxtv.org/pinchartl/media.git drm/du/next
head:   c43bcd64c7c703ff7196f74cb6bfc67e35b562d9
commit: e94bb2bf88e2e410a5ae9a0fdd161134e6ac59a0 [14/17] drm/bridge: lvds-codec: Add "lvds-decoder" support
config: arm64-randconfig-a001-20200204 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 7.5.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout e94bb2bf88e2e410a5ae9a0fdd161134e6ac59a0
        # save the attached .config to linux build tree
        GCC_VERSION=7.5.0 make.cross ARCH=arm64 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   drivers/gpu/drm/bridge/lvds-codec.c: In function 'lvds_codec_probe':
>> drivers/gpu/drm/bridge/lvds-codec.c:70:31: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     lvds_codec->connector_type = (u32)of_device_get_match_data(&pdev->dev);
                                  ^
   Cyclomatic Complexity 1 include/linux/err.h:PTR_ERR
   Cyclomatic Complexity 1 include/linux/device.h:dev_get_drvdata
   Cyclomatic Complexity 1 include/linux/device.h:dev_set_drvdata
   Cyclomatic Complexity 1 include/linux/platform_device.h:platform_get_drvdata
   Cyclomatic Complexity 1 include/linux/platform_device.h:platform_set_drvdata
   Cyclomatic Complexity 1 drivers/gpu/drm/bridge/lvds-codec.c:lvds_codec_remove
   Cyclomatic Complexity 2 drivers/gpu/drm/bridge/lvds-codec.c:lvds_codec_enable
   Cyclomatic Complexity 2 drivers/gpu/drm/bridge/lvds-codec.c:lvds_codec_disable
   Cyclomatic Complexity 1 drivers/gpu/drm/bridge/lvds-codec.c:lvds_codec_attach
   Cyclomatic Complexity 1 include/linux/device.h:devm_kzalloc
   Cyclomatic Complexity 1 include/linux/err.h:IS_ERR
   Cyclomatic Complexity 9 drivers/gpu/drm/bridge/lvds-codec.c:lvds_codec_probe
   Cyclomatic Complexity 1 drivers/gpu/drm/bridge/lvds-codec.c:lvds_codec_driver_init
   Cyclomatic Complexity 1 drivers/gpu/drm/bridge/lvds-codec.c:lvds_codec_driver_exit
   Cyclomatic Complexity 1 drivers/gpu/drm/bridge/lvds-codec.c:_GLOBAL__sub_I_00100_0_lvds_codec.c
   Cyclomatic Complexity 1 drivers/gpu/drm/bridge/lvds-codec.c:_GLOBAL__sub_D_00100_1_lvds_codec.c

vim +70 drivers/gpu/drm/bridge/lvds-codec.c

    56	
    57	static int lvds_codec_probe(struct platform_device *pdev)
    58	{
    59		struct device *dev = &pdev->dev;
    60		struct device_node *port;
    61		struct device_node *endpoint;
    62		struct device_node *panel_node;
    63		struct drm_panel *panel;
    64		struct lvds_codec *lvds_codec;
    65	
    66		lvds_codec = devm_kzalloc(dev, sizeof(*lvds_codec), GFP_KERNEL);
    67		if (!lvds_codec)
    68			return -ENOMEM;
    69	
  > 70		lvds_codec->connector_type = (u32)of_device_get_match_data(&pdev->dev);
    71		lvds_codec->powerdown_gpio = devm_gpiod_get_optional(dev, "powerdown",
    72								     GPIOD_OUT_HIGH);
    73		if (IS_ERR(lvds_codec->powerdown_gpio)) {
    74			int err = PTR_ERR(lvds_codec->powerdown_gpio);
    75	
    76			if (err != -EPROBE_DEFER)
    77				dev_err(dev, "powerdown GPIO failure: %d\n", err);
    78			return err;
    79		}
    80	
    81		/* Locate the panel DT node. */
    82		port = of_graph_get_port_by_id(dev->of_node, 1);
    83		if (!port) {
    84			dev_dbg(dev, "port 1 not found\n");
    85			return -ENXIO;
    86		}
    87	
    88		endpoint = of_get_child_by_name(port, "endpoint");
    89		of_node_put(port);
    90		if (!endpoint) {
    91			dev_dbg(dev, "no endpoint for port 1\n");
    92			return -ENXIO;
    93		}
    94	
    95		panel_node = of_graph_get_remote_port_parent(endpoint);
    96		of_node_put(endpoint);
    97		if (!panel_node) {
    98			dev_dbg(dev, "no remote endpoint for port 1\n");
    99			return -ENXIO;
   100		}
   101	
   102		panel = of_drm_find_panel(panel_node);
   103		of_node_put(panel_node);
   104		if (IS_ERR(panel)) {
   105			dev_dbg(dev, "panel not found, deferring probe\n");
   106			return PTR_ERR(panel);
   107		}
   108	
   109		lvds_codec->panel_bridge =
   110			devm_drm_panel_bridge_add_typed(dev, panel,
   111							lvds_codec->connector_type);
   112		if (IS_ERR(lvds_codec->panel_bridge))
   113			return PTR_ERR(lvds_codec->panel_bridge);
   114	
   115		/*
   116		 * The panel_bridge bridge is attached to the panel's of_node,
   117		 * but we need a bridge attached to our of_node for our user
   118		 * to look up.
   119		 */
   120		lvds_codec->bridge.of_node = dev->of_node;
   121		lvds_codec->bridge.funcs = &funcs;
   122		drm_bridge_add(&lvds_codec->bridge);
   123	
   124		platform_set_drvdata(pdev, lvds_codec);
   125	
   126		return 0;
   127	}
   128	

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation

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